Q1:
14th May Shift 2
Medium
common
$\int \frac{x^8}{(x^3+1)^{1/3}} dx$ is equal to
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14th May Shift 2
Medium
common
$\int \frac{x^8}{(x^3+1)^{1/3}} dx$ is equal to
14th May Shift 2
Easy
common
The solution of the differential equation $\frac{dy}{dx} = x^2 + x + \frac{1}{x}$ is
14th May Shift 2
Medium
common
For the function $f(x) = \frac{1}{x^2+2x+2}$ which of the following statements are TRUE? A. $f(x)$ is increasing on $(-\infty, -1)$ B. $f(x)$ is decreasing on $(-\infty, -1)$ C. $f(x)$ is decreasing on $(-1, \infty)$ D. maximum value of $f(x)$ is 1 Choose the correct answer from the options given below:
14th May Shift 2
Medium
common
If A (a, a − b), B (a + b, − b) and C (b, a) are three collinear points, where a, b, c, $\in \mathbb{R}$, then :
14th May Shift 2
Easy
common
If $y=\frac{\log x}{x}$, then $\frac{d^2y}{dx^2}$ is equal to(Consider $\log_e x = \log x$):
14th May Shift 2
Easy
common
The feasible region for a linear programming problem is shown in the figure. Let $Z = 3x - 4y$ be the objective function, then minimum of Z occurs at the point <img src="https://balti.afterboards.in/1HJxDfPzgbvge0L" width="400px"/>
14th May Shift 2
Easy
common
If $(AB)^T = C$, where $A = \begin{bmatrix} x & -1 \\ 2 & 3 \end{bmatrix}$, $B = \begin{bmatrix} 4 & 5 \\ 1 & -2 \end{bmatrix}$ and $C = \begin{bmatrix} 3 & 11 \\ 7 & y \end{bmatrix}$, then $x+y$ is :
14th May Shift 2
Easy
common
Area of the region bounded by the curves $y = x^2$, $x=0$, $x=2$ and $x-axis$ is
14th May Shift 2
Easy
common
The minimum value of $f(x) = e^x + e^{-x}$ is
14th May Shift 2
Easy
common
A pair of coins thrown then Match the LIST-I with LIST-II | | LIST-I | | LIST-II | |---|---|---|---| | A. | Probability of occurance of head on both coins is | I. | $\dfrac{3}{4}$ | | B. | Probability of occurance of at least one tail is | II. | $\dfrac{1}{2}$ | | C. | Probability of occurance of one tail only is | III. | $1$ | | D. | Probability of a tail appears on one coin given that only one coin shows head. | IV. | $\dfrac{1}{4}$ | Choose the correct answer from the options given below:
14th May Shift 2
Easy
common
Particular solution of the differential equation $dy + 2xy^2 dx = 0$, given that $y=1$, when $x=0$, is
14th May Shift 2
Easy
common
If $\int_0^1 \frac{1-x}{1+x} dx = A\log 2 + B$, then the value of A and B are
14th May Shift 2
Medium
common
If $a,b,c$ are the roots of $x^3+px+q=0$, then the value of $\begin{vmatrix} a & b & c \\ b & c & a \\ c & a & b \end{vmatrix}$ is equal to
14th May Shift 2
Medium
common
If $A = \begin{bmatrix} 0 & x & x \\ 2y & y & -y \\ z & -z & z \end{bmatrix}$ such that $AA^T=2I$ (where I is an identity matrix of order 3), then which of the following are True? A. $x^2=1, 3y^2=2$ B. $6y^2=4, 2z^2=3$ C. $9z^2=6, x^2=1$ D. $x^2:y^2:z^2 = 3:1:2$ Choose the correct answer from the options given below:
14th May Shift 2
Medium
common
Match the LIST-I with LIST-II | | LIST-I (Differential Equation) | | LIST-II (Order and degree) | |---|---|---|---| | A. | $\log\left(\dfrac{dy}{dx}\right) + \dfrac{d^2y}{dx^2} = 0$ | I. | Order : 3 and degree : not defined | | B. | $\dfrac{d^3y}{dx^3} + y^2 + e^{\frac{dy}{dx}} = 4$ | II. | Order : 2 and degree : 2 | | C. | $\dfrac{d}{dx}\left(\dfrac{dy}{dx}\right)^2 + \dfrac{dy}{dx} = \sqrt{x}$ | III. | Order : 2 and degree : not defined | | D. | $\left(1+\left(\dfrac{dy}{dx}\right)^2\right)^{3/2} = \dfrac{d^2y}{dx^2}$ | IV. | Order : 2 and degree : 1 | Choose the correct answer from the options given below:
14th May Shift 2
Medium
core
If $\vec a, \vec b, \vec c$ are mutually perpendicular vectors of equal magnitude, the angle between $\vec a+\vec b+\vec c$ and $\vec a$ is
14th May Shift 2
Medium
core
If A is a 3x3 matrix then: Match the LIST-I with LIST-II | | LIST-I | | LIST-II | |---|---|---|---| | A. | $\vert adj A\vert$ | I. | $\vert A\vert^{-1}$ | | B. | $\vert A.adj A\vert$ | II. | $\vert A\vert$ | | C. | $\vert A^{-1}\vert$ | III. | $\vert A\vert^2$ | | D. | $\vert A^{-1}.adj A\vert$ | IV. | $\vert A\vert^3$ | Choose the correct answer from the options given below:
14th May Shift 2
Easy
core
Four cards are drawn successively without replacement from a deck of 52 playing cards. The probability that all the four cards are king is:
14th May Shift 2
Medium
core
If $x\sqrt{1+y}+y\sqrt{1+x}=0, x\neq y$, then $\frac{dy}{dx}$ is equal to
14th May Shift 2
Medium
core
A bag contains 5 white, 4 black and 3 red balls. Which of the following statements are True? A. The probability of drawing three red balls one by one without replacement is $\frac{1}{220}$ B. One by one three balls drawn without replacement then probability that third ball is red is $\frac{1}{4}$ C. The probability of drawing 2 white balls one by one without replacement is $\frac{3}{4}$ D. One by one 3 balls are drawn without replacement then probability that third ball is red is $\frac{3}{4}$ Choose the correct answer from the options given below:
14th May Shift 2
Easy
core
If $\vec a=\hat i+\hat j+2\hat k$ and $\vec b=2\hat i+\hat j+2\hat k$, then the unit vector in the direction of $2\vec a-\vec b$ is equal to :
14th May Shift 2
Medium
core
$\int \frac{\sqrt{1+x^2}}{x^4} dx$ is equal to :
14th May Shift 2
Easy
core
Match the LIST-I with LIST-II | LIST-I | | LIST-II | | |---|---|---|---| | A. | The degree of the differential equation $\left(\frac{d^3y}{dx^3}\right)^4+\left(\frac{d^2y}{dx^2}\right)^5+\left(\frac{dy}{dx}\right)+y=0$ | I. | 0 | | B. | The order of the differential equation $\left(\frac{d^3y}{dx^3}\right)^4+\left(\frac{d^2y}{dx^2}\right)^5+\left(\frac{dy}{dx}\right)+y^2=0$ | II. | 4 | | C. | The number of arbitrary constants in the general solution of a differential equation of second order is | III. | 3 | | D. | The number of arbitrary constants in a particular solution of a differential equation of third order is | IV. | 2 | Choose the correct answer from the options given below:
14th May Shift 2
Medium
core
If $f(x)=\begin{cases}\frac{\sin(a-b)x}{x}, & x<0\\ 2a+b, & x=0\\ \frac{-\tan 12x}{bx}, & x>0\end{cases}$, $(b>0)$ is continuous at $x=0$, then
14th May Shift 2
Medium
core
Consider a determinant $\Delta=\begin{vmatrix}3a & -a+b & -a+c\\ -b+a & 3b & -b+c\\ -c+a & -c+b & 3c\end{vmatrix}$, then Match the LIST-I with LIST-II | | LIST-I (Value of $a, b, c$) | | LIST-II (Value of $\Delta$) | |---|---|---|---| | A. | $a = 0, b = 0, c = 1$ | I. | $27$ | | B. | $a = 0, b = 1, c = 1$ | II. | $0$ | | C. | $a = 0, b = 2, c = -1$ | III. | $6$ | | D. | $a = 1, b = 1, c = 1$ | IV. | $-6$ | Choose the correct answer from the options given below:
14th May Shift 2
Medium
core
Match the LIST-I with LIST-II | | LIST-I (Definite integrals) | | LIST-II (Value) | |---|---|---|---| | A. | $\displaystyle\int_{-6}^{6} \vert x \vert \, dx$ | I. | $1$ | | B. | $\displaystyle\int_{-\pi/2}^{\pi/2} \sin^{2017} x \, dx$ | II. | $36$ | | C. | $\displaystyle\int_{0}^{\pi/4} \cos x \, dx$ | III. | $0$ | | D. | $\displaystyle\int_{0}^{2} \dfrac{\sqrt{x}}{\sqrt{x}+\sqrt{2-x}} \, dx$ | IV. | $\dfrac{1}{\sqrt{2}}$ | Choose the correct answer from the options given below:
14th May Shift 2
Medium
core
If $\vec a=2\hat i-3\hat j+\hat k, \vec b=-\hat i+\hat k, \vec c=2\hat j-\hat k$ are three vectors, then area of the parallelogram having diagonals $(\vec a+\vec b)$ and $(\vec b+\vec c)$ is
14th May Shift 2
Medium
core
If $A=\begin{bmatrix}a & 1 & c\\ b & 2 & 1\\ 2 & 1 & c\end{bmatrix}$ is a singular matrix, then
14th May Shift 2
Easy
core
The probability of drawing a one-hundred rupee currency from two boxes one of which contain 3 fifty-rupee currency and 2 one-hundred rupee and other box contain 2 fifty-rupee currency and 3 one-hundred rupee currency notes is-
14th May Shift 2
Easy
core
A pair of unbaised dice is thrown together and sum of the numbers appearing is observed. The probability that the sum of numbers on the dice was 10, given that the observed sum was at least 9, is:
14th May Shift 2
Medium
core
The shortest distance between the lines whose vector equations are $\vec r=(\hat i+2\hat j+3\hat k)+\lambda(2\hat i+3\hat j+4\hat k)$ and $\vec r=(2\hat i+4\hat j+5\hat k)+\mu(4\hat i+6\hat j+8\hat k)$ is:
14th May Shift 2
Easy
core
In a sphere the rate of change of volume with respect to(w.r.t) time is
14th May Shift 2
Medium
core
If the coordinates of the points A, B, C, D be (1, 2, 3), (4, 5, 7), (−4, 3, −6) and (2, 9, 2) respectively, then the angle between the lines AB and CD is
14th May Shift 2
Medium
core
The maximum value of the function $f(x)=\sin x(1+\cos x)$ in the internal $[0,\pi]$ is
14th May Shift 2
Easy
core
If $A=\begin{bmatrix}a & 0\\0 & 0\end{bmatrix}$ and $B=\begin{bmatrix}0 & 0\\0 & b\end{bmatrix}$ then the matrix $A^3B^3$ is:
14th May Shift 2
Medium
core
For a linear programming problem, the maximum value of the objective function $z=2x+3y$ subject to constraints: $x-y\le-1, -x+y\le0, x,y\ge0$ is
14th May Shift 2
Easy
core
If C is an arbitrary constant, then Match the LIST-I with LIST-II | | LIST-I | | LIST-II | |---|---|---|---| | A. | $\displaystyle\int a^x \, dx$ | I. | $\sin^{-1}\dfrac{x}{a} + C$ | | B. | $\displaystyle\int \dfrac{dx}{\sqrt{a^2 - x^2}}$ | II. | $\log_e \vert x + \sqrt{x^2 - a^2} \vert + C$ | | C. | $\displaystyle\int \dfrac{dx}{\sqrt{a^2 + x^2}}$ | III. | $\dfrac{a^x}{\log_e a} + C$ | | D. | $\displaystyle\int \dfrac{dx}{\sqrt{x^2 - a^2}}$ | IV. | $\log_e \vert x + \sqrt{a^2 + x^2} \vert + C$ | Choose the correct answer from the options given below:
14th May Shift 2
Medium
core
For the function $f(x)=x^4-2x^2+5, x\in R$, then which of the following statements are True? A. $f(x)$ is increasing on $(-\infty,-1)$ B. $f(x)$ is decreasing on $(-\infty,-1)$ C. $f(x)$ is increasing on $(-1,0)\cup(1,\infty)$ D. $f(x)$ is decreasing on $(1,\infty)$ Choose the correct answer from the options given below:
14th May Shift 2
Medium
core
The general solution of the differintial equation : $x\frac{dy}{dx}-ay=1(a\neq0)$ is
14th May Shift 2
Medium
core
If $\vec a\times\vec b=\vec a\times\vec c$ and $\vec a\neq\vec 0$, then which of the following is/are TRUE? A. $\vec b=\vec c$ B. $\vec b+\vec c=\vec 0$ C. $\vec b=\vec c+\lambda\vec a$ for some scalar λ D. $\vec b+\vec c=\lambda\vec a$ for some scalar λ Choose the correct answer from the options given below:
14th May Shift 2
Medium
core
Match the LIST-I with LIST-II | | LIST-I (Functions) | | LIST-II (Principal Values) | |---|---|---|---| | A. | $\sin^{-1}\left(-\dfrac{1}{2}\right) + \cos^{-1}\left(-\dfrac{1}{2}\right)$ | I. | $-\dfrac{\pi}{3}$ | | B. | $\cos^{-1}\left(\dfrac{1}{2}\right) + 2\sin^{-1}\left(\dfrac{1}{2}\right)$ | II. | $\dfrac{3\pi}{4}$ | | C. | $\tan^{-1}\sqrt{3} - \sec^{-1}(-2)$ | III. | $\dfrac{\pi}{2}$ | | D. | $\cos^{-1}\left(-\dfrac{1}{\sqrt{2}}\right)$ | IV. | $\dfrac{2\pi}{3}$ | Choose the correct answer from the options given below:
14th May Shift 2
Easy
core
The area bounded by the line $y=x$, the $x-axis$ and the ordinates $x=-1$ and $x=2$ is
14th May Shift 2
Medium
core
The image of the point (1, 6, 3) with respect to the line $\frac{x}{1}=\frac{y-1}{2}=\frac{z-2}{3}$ is
14th May Shift 2
Easy
core
In a linear programming problem, the corner points of the feasible region, determined by the system of linear inequalities are (0, 0), (5, 0), (3, 4) and (0, 5). Let $z=5x+qy, q>0$ be the objective function. For what value of q the maximum value of z occurs at both (3, 4) and (0, 5)?
14th May Shift 2
Hard
core
If $y=(\sqrt x)^\pi$ such that $\frac{dy}{dx}=\frac{\pi}{a}y^{\pi+b}$ where $a,b\in\mathbb R$ then:
14th May Shift 2
Hard
core
Consider the system of equations $x+y+z=2, 2x+3y+2z=5, x+2y+\lambda z=\mu$ then which of the following statements are TRUE? A. The system of equations has unique solution if $\lambda=2$ and $\mu\in\mathbb R$ (set of real number) B. The system of equations is inconsistent if $\lambda=1$ and $\mu=1$ C. The system of equations is consistent if $\lambda=1$ and $\mu=1$ D. The system of equations is consistent if $\lambda=1$ and $\mu=3$ Choose the correct answer from the options given below:
14th May Shift 2
Medium
core
Let N be the set of natural numbers and R be the set of all real numbers. If function $f:N\to R$ defined by $f(x)=4x^2+12x+15$, then $f:N\to range(f)$ is
14th May Shift 2
Medium
core
The area of the region bounded by the curve $y=x^3, y=8$ and $x=0$ is equal to :
14th May Shift 2
Medium
core
Given the relation $R=\{(1,2),(2,3)\}$ on a set $A=\{1,2,3\}$, then which of following statements are TRUE? A. Minimum number of ordered pairs are added to R so that enlarged relation is reflexive is 3 B. Minimum number of ordered pairs are added to R so that enlarged relation is symmetric is 2 C. Minimum number of ordered pairs are added to R so that enlarged relation is an equivalence relation is 7 D. Minimum number of ordered pair are added to R so that enlarged relation is an equivalence relation is 6. Choose the correct answer from the options given below:
14th May Shift 2
Medium
core
Which of the following statement are true? A. The angle between the vectors $2\hat i+\hat j+3\hat k$ and $3\hat i-2\hat k$ is $\frac{\pi}{2}$ B. If $\vec a$ and $\vec b$ are two non-zero vectors, then projection of $\vec b$ on $\vec a$ is $\frac{\vec a\cdot\vec b}{|\vec a|}$ C. The unit vector normal to both vectors $\vec a=\hat i-\hat j-\hat k$ and $\vec b=\hat i+\hat j+\hat k$ is $\frac{1}{\sqrt2}(-\hat j+\hat k)$ D. The area of triangle formed by adjacent sides represented by vectors $\vec a=3\hat i+4\hat j$ and $\vec b=-5\hat i+7\hat j$ is 41 sq. units Choose the correct answer from the options given below:
14th May Shift 2
Easy
applied
If $R(x)$ is the total revenue received and $C(x)$ is the total cost incurred in the production of x units of a commodity, then the profit function $P(x)$
14th May Shift 2
Medium
applied
If X has a Poisson distribution such that $2P(X=1)=P(X=2)$, then which of the following are correct? A. The mean of X is 4 B. The mean of X is 2 C. $P(X=2)=\frac{8}{e^4}$ D. $P(X=3)=\frac{32}{e^4}$ Choose the correct answer from the options given below:
14th May Shift 2
Medium
applied
The second order derivative of the function $y=\log(4x^3+6)$ with respect to 'x' will be:
14th May Shift 2
Easy
applied
A man rows 8 km upstream in 4 hours and 16 km downstream in 4 hours . What is the speed of the current?
14th May Shift 2
Medium
applied
Match the LIST-I with LIST-II | | LIST-I (Differential equation) | | LIST-II (Degree) | |---|---|---|---| | A. | $\left(\dfrac{dy}{dx}\right)^2 + \dfrac{1}{\dfrac{dy}{dx}} = 5$ | I. | $2$ | | B. | $\dfrac{d^3y}{dx^3} = \left\{3 + \left(\dfrac{dy}{dx}\right)^2\right\}^{3/2}$ | II. | $4$ | | C. | $\dfrac{d^2y}{dx^2} = \left(\dfrac{dy}{dx}\right)^{5/4}$ | III. | $1$ | | D. | $y\dfrac{d^2x}{dy^2} = y^2 + 1$ | IV. | $3$ | Choose the correct answer from the options given below:
14th May Shift 2
Easy
applied
In a hypothesis test, the probability of making the wrong decision when the null hypothesis is true is called
14th May Shift 2
Medium
applied
At what rate converted semi-annually will the present value of perpetuity of ₹750/- payable at the end of each 6 months be ₹ 25000?(where p.a. denotes per annum)
14th May Shift 2
Easy
applied
Match the LIST-I with LIST-II | | LIST-I | | LIST-II | |---|---|---|---| | A. | In a L.P.P the objective function is always | I. | Finite | | B. | Feasible region for an L.P.P is always a | II. | Convex set | | C. | In an L.P.P having bounded feasible region, the maximum value of the objective function $z = ax + by$ is always | III. | Linear | | D. | Feasible region is the set of points which satisfy | IV. | All the given constraints | Choose the correct answer from the options given below:
14th May Shift 2
Easy
applied
If A is a skew symmetric matrix, then $A^2$ is
14th May Shift 2
Easy
applied
Two pipes, A and B, can fill a cistern in 10 minutes and 12 minutes respectively. Pipe C can empty the cistern in 15 minutes. If all 3 pipes are opened together, how long will it take to fill the cistern completely?
14th May Shift 2
Easy
applied
In a random experiment, a collection of trials is called Bernoulli trials if A. The number of trials is infinite. B. The trials are independent of each other. C. Each trial has exactly two outcomes, defined as success and failure. D. The probability of success will vary in each trial. Choose the correct answer from the options given below:
14th May Shift 2
Easy
applied
If $A=\begin{bmatrix}0 & 1\\0 & 0\end{bmatrix}$, then $A^{1999}$ is equal to
14th May Shift 2
Medium
applied
If the objective function $z=10(x-7y+190)$ and the corner points of the bounded feasible region are A(0,4), B(0,5), C(3,5), D(5,3), E(5,0), F(4,0), then the minimum value of z will be:
14th May Shift 2
Easy
applied
Given that the mean of the normal variate X is 10 and the standard deviation is 2, then what will be the z-score of the data point 16 ?
14th May Shift 2
Easy
applied
The components of time-series are A. Seasonal component B. Reverse component C. Cyclic component D. Irregular component Choose the correct answer from the options given below:
14th May Shift 2
Easy
applied
The 3-year moving averages for the loan (in lakh ₹) issued by a finance company for startups in different cities of India based on the values given below will be: | Year | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |---|---|---|---|---|---|---| | Loan amount | 25 | 20 | 18 | 13 | 23 | 12 |
14th May Shift 2
Medium
applied
In a kilometer race, A can beat B by 100 m. In a race of 400 m, B can beat C by 40 m. By how many meters will A beat C in a race of 500 m?
14th May Shift 2
Easy
applied
If today is Friday, then what will be the day after 129 days?
14th May Shift 2
Medium
applied
$\int_1^4 x^3\log x\, dx$ is equal to:
14th May Shift 2
Easy
applied
In what ratio must sugar at ₹12 per kg be mixed with sugar at ₹20 per kg so that the mixture is worth ₹15 per kg?
14th May Shift 2
Easy
applied
Amit made an investment of ₹27,000 in a no-fee fund for 3 years. At the end of the third year, the value of the investment increased to ₹64,000. The compound annual growth rate (CAGR) percentage of the investment is
14th May Shift 2
Easy
applied
A machine costing ₹16,00,000 is expected to have a useful life of 15 years and a final scrap value of ₹1,00,000. Which of the following statements are correct ? A. The annual depreciation is ₹50,000. B. The annual depreciation is ₹1,00,000. C. The book value at the end of the sixth year is ₹9,00,000. D. The book value at the end of the sixth year is ₹10,00,000. Choose the correct answer from the options given below:
14th May Shift 2
Medium
applied
The area of the region bounded by curves $y=x^2$ and line $y=4$ is:
14th May Shift 2
Easy
applied
A and B are square matrices of order 3 each such that $|A|=3, |B|=2$, then the value of $|4AB|$ will be?
14th May Shift 2
Medium
applied
The solution set of the given inequation $\frac{2x+3}{x-1}<4 (x\neq1)$ is:
14th May Shift 2
Easy
applied
The present value of an immediate perpetuity of ₹ R payable at the end of every year at the rate of i per period per rupee is given by:
14th May Shift 2
Medium
applied
Match the LIST-I with LIST-II | | LIST-I | | LIST-II | |---|---|---|---| | A. | In a binomial distribution, if $n = 16$, $p = 0.75$, then the mean is | I. | $4$ | | B. | In a binomial distribution, if $n = 25$, $p = \dfrac{1}{5}$, then variance is | II. | $32$ | | C. | In a binomial distribution, the mean is 8 and the variance is 6, then the number of trials is | III. | $18$ | | D. | If the mean and variance of a binomial distribution are 6 and 4 respectively, then the number of trials is | IV. | $12$ | Choose the correct answer from the options given below:
14th May Shift 2
Medium
applied
The relation between 'marginal cost (MC)' and 'average cost (AC)' of producing 'x' units of a product is
14th May Shift 2
Easy
applied
The effective rate $r_e$ corresponding to the nominal rate r compounded continuously is
14th May Shift 2
Easy
applied
Five students are selected at random from a school and their weights are found to be 50, 51, 53, 54 and 62. The point estimation of the population mean is:
14th May Shift 2
Easy
applied
Harish takes a loan of ₹6,00,000 at an interest of 10% per annum compounded annually for a period of 5 years. His EMI using a flat rate method is:
14th May Shift 2
Medium
applied
If A is a non-singular square matrix of order n, then which of the following are TRUE ? A. $|adj A|=|A|^{n-1}$ B. $|adj A|=|A|^{n-2}$ C. $|adj (adj A)|=|A|^{(n-2)^2}$ D. $|adj (adj A)|=|A|^{(n-1)^2}$ Choose the correct answer from the options given below:
14th May Shift 2
Easy
applied
Match the LIST-I with LIST-II | | LIST-I | | LIST-II | |---|---|---|---| | A. | A matrix which is both symmetric and skew symmetric | I. | symmetric matrix | | B. | All positive integral powers of a symmetric matrix | II. | unit matrix | | C. | Positive odd integral powers of a skew-symmetric matrix | III. | null matrix | | D. | A square matrix $A = [a_{ij}]_{n\times n}$ with $a_{ij} = \begin{cases}0, & \forall\, i \neq j \\ 1, & \forall\, i = j\end{cases}$ | IV. | skew-symmetric matrix | Choose the correct answer from the options given below:
14th May Shift 2
Easy
applied
Match the LIST-I with LIST-II | | LIST-I | | LIST-II | |---|---|---|---| | A. | Simple random sampling | I. | to get a team of 7 students with AI knowledge, selecting one of the students who will bring 6 more students. | | B. | Stratified sampling | II. | Asking colleagues to complete a survey for research work | | C. | Convenience sampling | III. | Selection of 100 employees from a company with 500 employees keeping gender balance in mind | | D. | Snowball sampling | IV. | Selection of 50 guests randomly from a party | Choose the correct answer from the options given below:
14th May Shift 2
Medium
applied
For the function $f(x)=2x^3-21x^2+36x-5$, which of the following statements are correct ? A. $x=2$ is a point of local maxima. B. $x=6$ is a point of local minima. C. The local maximum value is 12. D. The local maximum value is –94. Choose the correct answer from the options given below:
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